Concealed hinge.



J. VOLLMAN.

OONGEALED amen.

APPLICATION FILED OUT. 10, 1912.

Patented Aug. 19,1913.

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JOHN VOLLMAN, OF RACINE, "WISCONSIN.

CONCEALED HINGE.

To all whom it may concern:

Be it known that I, JOHN VOLLMAN, a citizen of the United States, residing at Racine, in the county of Racine and State of 'Wisconsin, have invented certain new and useful Improvements in Concealed Hinges; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in hinges and particularly to concealed hinges.

One object of the invention is to provide a concealed hinge having an improved construction of detachably connected members adapted to be readily separated to permit the removal of the door or other object supported by the hinge.

Another object is to provide a hinge of the character described which will be simple, strong, durable and inexpensive in construction, eflicient and reliable in operation and having means whereby the detachable members thereof may be securely fastened against casual disengagement.

WVith these and other objects in View, the invention consists of certain novel features of construction, combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings; Figure 1 is a detail horizontal sectional view of a portion of a door and its supporting frame showing one of my improved hinges engaged therewith; Fig. 2 is a vertical sectional view taken on the line.22 of Fig.1 and with the parts as shown in dotted lines in this figure; Fig. 3 is an irregular vertical section through the door frame and stationary member of the hinge taken on the line 33 of Fig. 2; Fig. 4 is a detail perspective view of the pivotal member of the hinge; Fig. 5 is a front View 'of the keeper or door member of the hinge.

Referring more particularly to the drawings 1 denotes the door and 2 denotes the door frame to which my improved hinge is applied. In the edge of the door frame is formed a recess or mortise 3 with which is engaged the frame or stationary member 4 of the hinge. The frame or stationary member 4 comprises a plate having therein a centrally disposed rectangular opening 5. On the inner side of the plate at the upper and lower edge of the opening 5 are in- Specification of Letters Patent.

Application filed October 10, 1912.

Serial No. 724,992.

wardly extending horizontally disposed parallel bearing lugs 6 in which are secured the ends of a vertically disposed pintle 7. Between the lugs and one edge of the plate is formed a reinforcing web 8 and in the outer side of the plate below the opening 5 is a recess or "depression 9 the purpose of which will be hereinafter described. In arranging the frame member 4 the lugs 6 will project back into the mortise 3 while the plate on which the lugs are formed will be set into the outer edge of the door frame so that the outer surface of the plate will form a flush engagement with the adjacent surface of the edge of the door frame as shown. \Vhen thus arranged the frame member 4 is se curely fastenedby screws or other suitable fastening devices as shown. Pivotally engaged with the pintle 7 and adapted to swing between the lugs 6 and through the opening 5 in the plate of the stationary member 3 is the swinging or pivotal member 10 of the hinge. The pivotal member 10 comprises a substantially right angularly formed plate having on its inner end an enlarged head 11 provided with a central vertically disposed passage 12 adapted to receive the pintle 7 whereby the member 10 is pivotally secured to the frame or stationary member 4 of the hinge. The opposite end of the pivotal member 10 is slightly curved as shown and has its extremity shaped to form a foot 13 having a flat outer surface and which extends down wardly a short distance below the member to form a lug 14 in which is arranged a screw hole 15 the purpose of which will be hereinafter described. On the upper end of the flat surface of the foot 13 is a Vertically disposed dovetail shaped attaching lug 1G by means of which said pivotal member is detachably engaged with the door member 17 of the hinge.

The door member 17 of the hinge comprises a fiat plate which is secured to the inner edge of the door or other object 1 to be supported by the hinge and which is set into said edge and secured by screws or otherfastening devices, whereby the outer surface of the plate is flush with the edge of the door as shown. In the door member or plate 17 is a vertically disposed tapered slot 18 the edges of which are beveled to form a dovetail shaped recess. The slot 18 connects at its lower end with a rectangular opening 19 in the plate said opening being Patented Aug. 19,1913...

tit-got than the outside dimensitm 'tti on the pivotzii member 10 oil:

in, nppiying the hinge the stationary or frame member thereof, together with the pivotzrt member secured in the frame oi tho door in the trimmer described white the ttoor nmmhier or phrte 1? is or {i nnci ttltttiti in the edge of the door in the nmnner described. litter the ports of the hinge son tints; arranged the door is; he! in poss to engage the opening; 19 in. tho (toor inoinbw or plate 1? with the rtow'etnii sharpeft h n at the pivotat member ot the hin It], t ieh the door is lowered thns tlgfillfl the t pe'etft Slot 18 'avith the ill. tron tho too thus been ong 1 member ot the hinge has it with the 'iirottii on; her

saint tiUt l meiirhei and the door n'iii be hiIitFCt tr" sinpooi to? h sent oivotoi nn open pos; CiCtt riy tioim indicted in full J i tlllti ttottnt hoes in, iifiigg. l oi the (h-2min in tH'titE't to orovent the tzz sntti ihsengnneit Q ment of to door member of to hinge from the h i oi. the pivotal member amt at the some to pt-rnnt the door member and door to be removed when tienireth it PlUVlLiO T :hnstening arrow 20 which is engt o with the screw hoh: 15 in the inn; 1% of the bivotnt member 10 and is driven through the opening it) in the door inembe of the hinge and. into the edge of the door, said screw thus iii'iliify securing tho nivotu member ot tho hi. 3- to the door member :imi posi- 'ti't'tlif pioventing the door from being titted anti remoi'eit until the screw it) has been taken out. when the tioor is swung to n (tiUStti position the tug l t in nthiptmt to engage the recess 9 in the outer side of the attaching phite of the t'rnme member of the hinge so that said hig will not interfere with the closing of the door.

It onvions that when the pivoted memher 10 whieh is carried by the door frnine .2 is property oonneetett to the door n'mniber ii. the oxtenriort h1g8 let. to which the arrow 2t) pawns, entirety covers the bziszii portion ot the openingit'ornieti in the door momner thereby presenting :1 finished connection of the ports and further preventing); dust from gaining :ltftfCSS to Silitl oponing'.

White a hinge constructed in accordance with my invention may be employed for :1 umber ot' purposes the some is particularly use in connection with doors oi mitoinobiie bodies to permit the 1' air/iii removed when necessary onstrnotio 2516i finishing oi the hon him when the body is entirely in "i is the hinge members may be 5 nett in the manner GSSCIJbCCi to pro it further removal of the rioor nntli tin storing devices of the hn /s or reoregoing description taken. in with the iieeoitnponyi 1g tit'tttt l 7 non of the tiiy inic terotooflt Without nttoti oirphnnition.

(.lOIlS ehengir in the 101m, 1 33101 i i om the :onnec ion it t L and the minor dGEGHiS of oon trnetion. may

"Ported to Without ooi'mrting; from the prin- "n no of 1011, What eonoenieci hinge comprising door "he some consisting of :1 to howroett therein an aperture ,uovit t bowel huge receiving opening min: :2 w, L extension torm' it contintnition the eoih. a, hinged member 7 (toretoited hip; tithip'teti tor interlocking engngo roont with the upper portion of the aperture formed in tho phito Which is secured to the tiOOl men'iber, t n opertnred hig hing t. part of said hinged member ant projecting below the dove-tailed. lug; ti'ioreo'if end itchi iited. to cover the receiving bziszii pm 'on the aperture in the plate, frzm'ie member having on opening formed therein to receive the hinged member, the latter being mounted to one side of said opening in tho :frmno member, and received thereby when. the (too;- is in. o, cioseti position, and :1 serew passed ti'irough the npertured inn; and through the basal portion of the opening in the photo and into tho door member whereby the parts are securely attached and the basal portion. of the opening; in the plate entirety covered.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit messes.

J t) it N V @LLM it N. 

